body{
  height: 100%;
  overflow: hidden;
}
.bg{
  width: 100%;
  height: 100vh;
  object-fit: cover;
}
.start{
  position: absolute;
  top: 42%;
  left: 50%;
  transform: translateX(-50%);
  img{
    width: 3.667rem;
    height: 1.04rem;
  }
}